Free: Contests & Raffles.
I've hunted out of an RV and it was a great experience. Seems great to have. I don't have any experience about maintaining one. That said. I'm a math guy, so here goes: Are you rich? Can you pay cash for this? If you didn't know, these things depreciate a TON. Way more than a car. If you'll take one 2-3 years old, you could get it 50% the cost of new. I'm projecting to be rich when I retire, decades from now, but I bet even then if I decide to buy one that I'd still prefer to buy used. Just better economics to buy even at least a year old and save 20-25%. etc
In addition, have you heard that you might be able to write off your interest if you claim it as a second home. I was told this by a SALESMAN so I'm sure it is true!